This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 16 |
| 3 | 162 |
| 4 | 768 |
| 5 | 2500 |
| 6 | 6480 |
| 7 | 14406 |
| 8 | 28672 |
| 9 | 52488 |
| 10 | 90000 |
| 11 | 146410 |
| 12 | 228096 |
| 13 | 342732 |
| 14 | 499408 |
| 15 | 708750 |
| 16 | 983040 |
| 17 | 1336336 |
| 18 | 1784592 |
| 19 | 2345778 |
| 20 | 3040000 |
| 21 | 3889620 |
| 22 | 4919376 |
| 23 | 6156502 |
| 24 | 7630848 |
| 25 | 9375000 |
| 26 | 11424400 |
| 27 | 13817466 |
| 28 | 16595712 |
| 29 | 19803868 |
| 30 | 23490000 |
| 31 | 27705630 |
| 32 | 32505856 |